package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.enity.Category;
import com.itheima.reggie.enity.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;


import java.util.List;
import java.util.stream.Collectors;

/**
 * 套餐管理
 */
@RestController
@RequestMapping("/setmeal")
@Slf4j
@Transactional
public class SetmealController {
    @Autowired
    private SetmealService setmealService;
    @Autowired
    private SetmealDishService setmealDishService;
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增套餐
     *
     * @param setmealDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody SetmealDto setmealDto) {
        setmealService.saveWithDish(setmealDto);
        return R.success("添加成功");
    }

    /**
     * 分页查询套餐管理
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page( int page, int pageSize, String name) {
        //添加分页构造器对象
        Page<Setmeal> pageInfo = new Page<>(page,pageSize);
        Page<SetmealDto> dtoPage = new Page<>();

        LambdaQueryWrapper<Setmeal> lqw = new LambdaQueryWrapper<>();
        //添加查询条件使用like 根据nane进行模糊查询
        lqw.like(name != null, Setmeal::getName, name);
        //添加排序条件  根据更新时间进行降序排列
        lqw.orderByDesc(Setmeal::getUpdateTime);
        setmealService.page(pageInfo,lqw);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dtoPage,"records");
        List<Setmeal> records = pageInfo.getRecords();
        List<SetmealDto> list = records.stream().map((item -> {
            SetmealDto setmealDto = new SetmealDto();
            //拷贝对象
          BeanUtils.copyProperties(item,setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询对象
            Category category = categoryService.getById(categoryId);
            if (category != null) {
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);

            }
            return setmealDto;
        })).collect(Collectors.toList());
        dtoPage.setRecords(list);
        return R.success(dtoPage);

    }

    /**
     * 删除套餐
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete (@RequestParam List<Long> ids){
        log.info("ids :{}",ids);
        setmealService.removeWithDish(ids);
        return R.success("删除套餐数据成功");
    }

    /**
     * 根据Id查询套餐
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> lqw = new LambdaQueryWrapper<>();
        lqw.eq(setmeal.getCategoryId() != null ,Setmeal::getCategoryId,setmeal.getCategoryId());
        lqw.eq(setmeal.getStatus() != null,Setmeal::getStatus,setmeal.getStatus());
        lqw.orderByDesc(Setmeal::getUpdateTime);
        List<Setmeal> list = setmealService.list(lqw);
        return R.success(list);

    }

}
